Description

Benzene, 1,3-Diisocyanatomethyl-, Polymer With 1,6-Diisocyanatohexane is a specialized polyisocyanate prepolymer, a key intermediate in the production of high-performance polyurethane materials. This compound is valued for its ability to impart excellent mechanical strength, chemical resistance, and durability to the final polymer. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product performance.

Application

• High-Performance Coatings: Used as a curing agent in two-component polyurethane coatings for industrial, automotive, and marine applications, providing excellent gloss, hardness, and weatherability.
• Adhesives & Sealants: Serves as a key component in formulating strong, flexible, and chemically resistant polyurethane adhesives and sealants for construction and assembly.
• Elastomers: Acts as a crosslinking agent in the production of polyurethane elastomers, such as rollers, wheels, and gaskets, requiring high resilience and abrasion resistance.
• Binder Systems: Employed in composite materials and foundry sand binders to create strong, dimensionally stable structures.
• Waterproofing Membranes: A critical raw material in the formulation of liquid-applied, seamless waterproofing and roofing membranes.
• Flexible & Rigid Foams: Can be used to modify the properties of polyurethane foams, enhancing their density and load-bearing characteristics for specialized applications.

Basic Information

Product Name	Benzene, 1,3-Diisocyanatomethyl-, Polymer With 1,6-Diisocyanatohexane
CAS No.	63368-95-6
Molecular Formula	(C11H10N2O2 · C8H12N2O2)n
Molecular Weight	Polymer - Variable
Synonyms	Polymeric MDI (pMDI) based on TDI and HDI; TDI/HDI Prepolymer; 1,3-Bis(isocyanatomethyl)benzene polymer with 1,6-diisocyanatohexane; Isocyanic acid, polymethylenepolyphenylene ester, polymer with 1,6-diisocyanatohexane; HDI-TDI copolymer; Toluene diisocyanate/Hexamethylene diisocyanate copolymer; Aromatic/Aliphatic polyisocyanate
EINECS	Contact for details

Quality Control

Our polyisocyanate prepolymers are manufactured under strict process controls to ensure batch-to-batch consistency and performance reliability. Quality is verified through a series of analytical tests including NCO content, viscosity, and color determination. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for the specific grade (typically between 15°C and 25°C). This product is hygroscopic (moisture-sensitive) and must be protected from atmospheric moisture to prevent premature reaction and gelation. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and water.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber liquid
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Color (Gardner)	≤ 3
Specific Gravity (25°C)	~1.15 - 1.20
Flash Point	> 200 °C (closed cup)
Monomer Content (HDI, TDI)	< 0.5% (typical)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.